It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a self number, because there is not a number n which added to its sum of digits gives 394728501.
It is a congruent number.
Almost surely, 2394728501 is an apocalyptic number.
It is an amenable number.
394728501 is a wasteful number, since it uses less digits than its factorization.
394728501 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52075.
The square root of 394728501 is about 19867.7754416543. The cubic root of 394728501 is about 733.5552479680. Note that the first 3 decimals are identical.
The spelling of 394728501 in words is "three hundred ninety-four million, seven hundred twenty-eight thousand, five hundred one".